Vector3 findCenterOfDrag()
{
Profiler.BeginSample("[RCSBA] CoD findCenterOfDrag");
Cd = 0f;
position = Vector3.zero;
/* setup parachutes */
switch (RCSBuildAid.Mode)
{
case PluginMode.Parachutes:
var parachutes = RCSBuildAid.Parachutes;
for (int i = 0; i < parachutes.Count; i++)
{
var parachute = (ModuleParachute)parachutes [i];
var part = parachute.part;
var dc = part.DragCubes;
#if DEBUG
var vector = parachute.GetComponent <VectorGraphic> ();
if (vector == null)
{
vector = parachute.gameObject.AddComponent <VectorGraphic> ();
vector.setColor(Color.blue);
vector.minLength = 0.6f;
}
#endif
dc.SetCubeWeight("DEPLOYED", 1);
dc.SetCubeWeight("SEMIDEPLOYED", 0);
dc.SetCubeWeight("PACKED", 0);
dc.SetOcclusionMultiplier(0);
/* I need to do all this since parachute's drag depends of the
* orientation of the canopy */
Transform t = part.FindModelTransform(parachute.canopyName);
t.rotation = Quaternion.LookRotation(-VelocityDirection, part.transform.forward);
if (part.symmetryCounterparts != null)
{
float angle = Mathf.Clamp(parachute.spreadAngle * (part.symmetryCounterparts.Count + 1), 0, 45);
t.Rotate(angle, 0, 0, Space.Self);
}
var rotation = Quaternion.LookRotation(part.partTransform.InverseTransformDirection(t.forward));
dc.SetDragVectorRotation(rotation);
#if DEBUG
vector.value = part.partTransform.InverseTransformDirection(dc.DragVector) * dc.AreaDrag;
#endif
}
break;
}
EditorUtils.RunOnVesselParts(calculateDrag);
EditorUtils.RunOnSelectedParts(calculateDrag);
position /= (float)Cd;
Cd *= PhysicsGlobals.DragMultiplier * reynoldsDragMult;
Profiler.EndSample();
return(position);
}
protected override Vector3 UpdatePosition()
{
vectorSum = Vector3.zero;
totalMass = 0f;
EditorUtils.RunOnVesselParts(calculateCoM);
EditorUtils.RunOnSelectedParts(calculateCoM);
// ReSharper disable once CompareOfFloatsByEqualityOperator
if (totalMass == 0)
{
return(Vector3.zero);
}
return(vectorSum / totalMass);
}
void LateUpdate()
{
Profiler.BeginSample("[RCSBA] MoI LateUpdate");
if (!RCSBuildAid.Enabled)
{
Profiler.EndSample();
return;
}
axis = RCSBuildAid.VesselForces.Torque().normalized;
if (axis == Vector3.zero || EditorLogic.RootPart == null)
{
/* no torque, calculating this is meaningless */
Profiler.EndSample();
return;
}
value = 0f;
EditorUtils.RunOnVesselParts(calculateMoI);
EditorUtils.RunOnSelectedParts(calculateMoI);
Profiler.EndSample();
}